Abstract

The aim of the work is elaboration of principally new cryogenic method of deep processing of carotene-containing vegetable raw material (CCVRM) such as carrot, pumpkin, sweet Bulgarian pepper, tomato, sea buckthorn, apricot using cryogenic freezing and fine-dispersed grinding. The new method of deep processing leads to more full extracting and removal of β-carotene from the state, bound with biopolymers into free and hydrophilic form. The mechanism of these processes was presented. It was established, that mass share of β-carotene in cryopuree, received by the new method, exceeds its content in initial (fresh) CCVRM in 3,0…3,5 times. The regularities of growth and transformation of carotenoids separately at freezing with different high speeds and low-temperature grinding of CCYRM were established. It was demonstrated, that at cryogenic freezing take place quantitative increase of mass share of carotenoids in 2,0…2,5 times comparing with initial (fresh) raw material depending on freezing speed and type of CCVRM. That is it was demonstrated, that frozen carotene-containing vegetable raw material contains 2,0…2,5 times more β-carotene than fresh one. Mechanism of these processes was presented. It was demonstrated, that cryopuree of CCVRM, received using new methods of deep processing, exceeds the initial (fresh) raw material by the content not only β-carotene but also other low-molecular bioactive substances: L-ascorbic acid – in 2,0…2,2 times, phenol compounds – in 1,7…1,8 times, tanning substances – in 1,5…1,7 times). That is they have principally new chemical composition, because practically all bioactive substances (BAS) in cryopuree are in nanosize form and easily assimilated by human organism.

Highlights

  • The global problem in international practice in many countries of the world is for today deficit of vitamins, β-carotene, mineral substances, proteins and other bioactive substances (BAS) in food allowance [1], and the need in them is incompletely satisfied

  • The regularities of growth and transformation of carotene-containing raw material at cryogenic freezing with low-temperature grinding of frozen raw material were established

  • That at cryogenic freezing takes place the quantitative increase of mass share of carotenoids that depending on freezing speed and type of carotene-containing raw material is 2,0...2,5 times more comparing with initial raw material [4]

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Summary

Introduction

The global problem in international practice in many countries of the world is for today deficit of vitamins, β-carotene, mineral substances, proteins and other bioactive substances (BAS) in food allowance [1], and the need in them is incompletely satisfied In this connection in many countries are many programs, within which many synthetic food products (milk, meat, vegetables, flour, peeled grains and so on) are created and already industrially produced. Topical and prospective direction of receiving health-improving food products in different countries of the world (especially, in Japan, Germany and other) is the use of carotene-containing vegetables and berries (in particular, carrot, pumpkin, tomato, sweet pepper, apricot and other) for their preparation They differ from other vegetable raw material by the high content of carotenoids and other BAS, especially phenol compounds with R-vitamin, anti-oxidative activity (rutin, hydroxycinnamic acids and other), polyphenol compounds. It is urgent to elaborate principally new cryogenic method of deep processing of carotene-containing raw material using cryogenic “shock” freezing on the low-temperature program freezer as innovation

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